top of the hour, i'm brianna keilar and we are beginning with hurricane irma, which is one of the strongest atlantic hurricanes in history, roaring through the caribbean as we speak. the current forecast puts it on a collision course with florida. >> that's what irma looked like and sounded like as it tore like a freight train through st. martin and while it's still too early to tell how exactly this will impact the u.s., both florida and puerto rico are declared states of emergency right now. here's florida governor rick scott. he's issuing an ominous warning just a short time ago. >> storm surge and extreme winds are the biggest concern right now. the storm is bigger, faster, and stronger than hurricane andrew. we are being very aggressive in